Ubuntu Security Notices

Developers issue an Ubuntu Security Notice when a security issue is fixed in an official Ubuntu package. You can find additional guidance for high-profile vulnerabilities in the Ubuntu Vulnerability Knowledge Base section.

To report a security vulnerability in an Ubuntu package, please contact the Security Team.

The Security Team also produces OVAL files for each Ubuntu release. These are an industry-standard machine-readable format dataset that contain details of all known security vulnerabilities and fixes relevant to the Ubuntu release, and can be used to determine whether a particular patch is appropriate. OVAL files can also be used to audit a system to check whether the latest security fixes have been applied.

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USN-6696-1: OpenJDK 8 vulnerabilities

18 March 2024

Several security issues were fixed in OpenJDK 8.

  • Ubuntu 23.10 ,
  • 22.04 LTS,
  • 20.04 LTS,
  • 18.04 LTS

CVE ID

CVE-2024-20945, CVE-2024-20952, CVE-2024-20919 + 3 others

USN-6695-1: TeX Live vulnerabilities

14 March 2024

Several security issues were fixed in TeX Live.

  • Ubuntu 23.10 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2024-25262, CVE-2019-18604, CVE-2023-32668

USN-6694-1: Expat vulnerabilities

14 March 2024

Expat could be made to crash if it received specially crafted input.

  • Ubuntu 23.10 ,
  • 22.04 LTS

CVE ID

CVE-2024-28757, CVE-2023-52425

USN-6693-1: .NET vulnerability

12 March 2024

.NET could be made to crash if it processed specially crafted requests.

  • Ubuntu 23.10 ,
  • 22.04 LTS

CVE ID

CVE-2024-21392

USN-6691-1: OVN vulnerability

12 March 2024

OVN could be made to disrupt traffic.

  • Ubuntu 23.10 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2024-2182

USN-6690-1: Open vSwitch vulnerabilities

12 March 2024

Several security issues were fixed in Open vSwitch.

  • Ubuntu 23.10 ,
  • 22.04 LTS,
  • 20.04 LTS

CVE ID

CVE-2023-5366, CVE-2023-3966

USN-6689-1: Rack vulnerabilities

12 March 2024

Rack could be made do denial of service if it received a specially crafted header.

  • Ubuntu 23.10

CVE ID

CVE-2024-26146, CVE-2023-27539, CVE-2024-26141

USN-6680-2: Linux kernel vulnerabilities

8 March 2024

Several security issues were fixed in the Linux kernel.

  • Ubuntu 23.10 ,
  • 22.04 LTS

CVE ID

CVE-2023-46343, CVE-2024-0607, CVE-2023-6121 + 4 others

USN-6680-1: Linux kernel vulnerabilities

6 March 2024

Several security issues were fixed in the Linux kernel.

  • Ubuntu 23.10 ,
  • 22.04 LTS

CVE ID

CVE-2023-46343, CVE-2023-51782, CVE-2023-6121 + 4 others

USN-6679-1: FRR vulnerability

6 March 2024

FRR could be made to crash if it received specially crafted network traffic.

  • Ubuntu 23.10 ,
  • 22.04 LTS

CVE ID

CVE-2024-27913

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